Can you give us a pointer to the chip or whatever you are trying to 
interface to???

Bob Ammerman
RAm Systems

----- Original Message ----- 
From: "Mike W" <mike@pencoys.org.uk>
To: <piclist@mit.edu>
Sent: Thursday, June 09, 2005 5:22 AM
Subject: [PIC} Variable bit length serial out routine pse


> Hi Folks,
> I'm looking for an asm routine for bit banging a variable bit length 
> serial
> output with data, clock and strobe
> Data length is between 8 and 22 bits, clocked and then strobed to latch 
> the
> data. As an added complication I need to be able to enter the routine with
> variables of bitlength, clock pin and, obviously, the data to be sent.
>
> I'm not sure about this as the data sheet does'nt specify, but I believe 
> the
> datastream also needs to be at a constant speed, in otherwords if sending 
> 22
> bits the clock needs to be 22 equally spaced pulses followed by the 
> strobe.
>
> any offers of source, or pointers to where I might get some ideas on how 
> to do
> this greatly appreciated.
> thanks, Mike
>
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